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Chapter 3. 9500 MXC Nodes
Vol. II-3-92
Alcatel-Lucent
DAC/Tributary Protection
E3/DS3, and STM1/OC3 DACs may be used in pairs to provide hot-standby
redundancy.
The protectable DACs are:
• DAC 3xE3/DS3M
• DAC 1x155o
• DAC 2x155o
• DAC 155oM
• DAC 2x155e
Two protection configurations are supported, tributary protection, and always-on:
Tributary Protection
• Y cables connect the paired DACs to customer equipment.
• In the Rx direction (from the customer) both DACs receive data, but only the
online Rx DAC sends this data to the TDM bus.
• In the Tx direction, the online Tx DAC sends data to customer equipment, the
other mutes its Tx line interface.
Tributary Always On
• Separate cables connect each DAC to customer equipment.
• In the Rx direction (from the customer) both DACs receive data, but only the
online Rx DAC sends this data to the TDM bus.
• In the transmit direction both DACs send data to customer equipment, and the
customer equipment switches between these two
always on
tributaries.
• TA protection must be used where two 9500 MXC INU/INUes are to be
interfaced using protected DACs.
The DACs are configured as primary and secondary. The primary is the default
DAC for online Rx and Tx.
Except for the DAC 155oM, protection switching operates independently for Rx
and Tx, meaning it is possible for one of the DACs to be the online Tx, and the
other online Rx.
When a switching event occurs, all Tx and/or Rx tributaries are switched to the
protection partner. Refer to DAC Protection Switching Criteria on page 3-100.
Summary of Contents for 9500 MXC
Page 5: ......
Page 6: ......
Page 28: ......
Page 29: ...Volume I 9500 MXC Health and Safety Requirements...
Page 30: ......
Page 39: ...Volume II 9500 MXC System Description...
Page 40: ......
Page 56: ...Chapter 1 9500 MXC System Overview Vol II 1 16 Alcatel Lucent...
Page 94: ...Chapter 2 9500 MXC Terminals Vol II 2 38 Alcatel Lucent...
Page 218: ...Chapter 4 Outdoor Units Vol II 4 4 Alcatel Lucent...
Page 236: ...Chapter 6 9500 MXC Performance and Diagnostic Features Vol II 6 14 Alcatel Lucent...
Page 237: ...Volume III 9500 MXC Installation...
Page 238: ......
Page 268: ...Chapter 2 Outdoor Installations Vol III 2 26 Alcatel Lucent Figure 2 16 BGXZ Surge Suppressor...
Page 282: ...Chapter 2 Outdoor Installations Vol III 2 40 Alcatel Lucent...
Page 300: ...Chapter 4 Installing the IDU Vol III 4 6 Alcatel Lucent...
Page 321: ...Volume IV 9500 MXC CT...
Page 322: ......
Page 332: ...Chapter 1 9500 MXC CT Introduction Vol IV 1 10 Alcatel Lucent...
Page 362: ...Chapter 2 Setting Up 9500 MXC CT Vol IV 2 30 Alcatel Lucent...
Page 374: ...Chapter 3 Installation and Configuration Process Vol IV 3 12 Alcatel Lucent...
Page 384: ...Chapter 4 Licensing Vol IV 4 10 Alcatel Lucent...
Page 388: ......
Page 390: ......
Page 508: ...Chapter 8 Protection Vol IV 8 26 Alcatel Lucent...
Page 542: ...Chapter 10 Networking Configuration Vol IV 10 18 Alcatel Lucent...
Page 546: ......
Page 550: ...Chapter 12 Date and Time Configuration Vol IV 12 4 Alcatel Lucent...
Page 558: ...Chapter 13 Software Management Vol IV 13 8 Alcatel Lucent...
Page 562: ......
Page 632: ...Chapter 15 Diagnostics Vol IV 15 70 Alcatel Lucent Figure 15 27 Example Parts Screen...
Page 636: ...Chapter 15 Diagnostics Vol IV 15 74 Alcatel Lucent...
Page 637: ...Volume V Commissioning and Troubleshooting...
Page 638: ......
Page 699: ...Volume VI Appendices...
Page 700: ......
Page 791: ...9500 MXC User Manual 3DB 23063 ADAA Rev 004 July 2007 Vol VI B 65...
Page 792: ......
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Page 846: ...Vol VI D 20 Alcatel Lucent...
Page 856: ...Vol VI E 10 Alcatel Lucent...
Page 873: ...9500 MXC User Manual 3DB 23063 ADAA Rev 004 July 2007 Vol VI F 17...
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